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題 名 | 原水中腐植酸成分生成消毒副產物特性之探討=The Disinfection By-products Formation of Water Containing Humic Acids |
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作 者 | 張鎮南; 許文龍; | 書刊名 | 東海學報 |
卷 期 | 38:2(理學院) 民86.07 |
頁 次 | 頁175-196 |
分類號 | 445.2562 |
關鍵詞 | 腐植酸; 分子量; DBPs; THMFP; AOXFP; HAAFP; TOC; Humic acid; Molecular weight; DBPs; THMFP; AOXFP; TOC; HAAFP; |
語 文 | 中文(Chinese) |
中文摘要 | 腐植酸(Humic acid)為自來水加氯消毒生成消毒副產物(DBPs-Disinfection By-Products )之主要前驅物質,近年來對於腐植酸的特性研究已漸受重視,本研究是採用 德基水庫之原水, 以 XAD-8 樹脂分離出腐植酸的成分, 經過膠凝層析儀( GPC-Gel Permeation Chromatography )將其細分成不同的分子量區間,再個別施以加氯消毒過程以 成消毒副產物,經過儀器分析出其消毒副產物的生成潛能,包括三鹵甲烷生成潛能( THMFP )、吸附性有機鹵化物生成潛能( AOXFP )以及鹵化乙酸生成潛能( HAAFP ),探討腐植 酸在不同分子量區間內,消毒副產物生成潛能特性。 此外,再經由 TOC 的比對,顯示出不 同分子量區間內單位 DOC 的消毒副產物生成量, 以作為往後控制飲用水生成消毒副產物之 參考。 本研究結果顯示,腐植酸的有機碳( DOC )分子量大約分佈在 500 ∼ 10,000 之間,而經 由紫外光( UV254 )照射,可看出其在分子量為 100 ∼ 1000 之間含有較多的不飽和鍵。 證實在含有較多的不飽和鍵的分子量區間, 其單位 DOC 的消毒副產物生成量較其他區間為 高,但因這部分的含量在水樣中所佔的比例較少,因此消毒副產物的生成量也較少。 |
英文摘要 | Human acid be recognized as the major precursors of disinfection by-products (DBPs) during water chlorination. This study prepared humic acid by extract method with XAD-8 resins from Te-Chi Reservoir sample. This study prepared humic sample separated by Gel permeation chromatography (GPC) method and classified into many parts based on molecular weight distribution (MWD). The different samples were chlorinated and investigated their DBPs formation potential (FP): Trihalomethanes (THMPF), adsorption organic halogen (AOXFP) and halogen acetic acid (HAAFP). Compared the DBPs and TOC of various MWD sample, we may observe the possible way to reduce DBP formation potential by the molecular weight cutoff method. The MWD of Te-Chi Reservoir humic acid was located between 500-1,000. Most unsaturated double bond carbon structure was found located between 100-1,000 based on the UV □ absorbance. The DBPFP generated in this MWD range is relatively higher than others, therefore, an effective cutoff for the reduction of DBPFP may set between 100-1,000 dalton. |
本系統中英文摘要資訊取自各篇刊載內容。